Powder container



April 340, 1935. w. J. BAUER 1,999,228

POWDER CONTAINER Filed sept. 28, 1934 INVENTOR I/l//LL/AM J BA UER ATTORNEY Patented Apr. 30, 1935 UNITED STATE I POWDER CONTAINER William J. Bauer, New

York, N. Y., assignor `to Robert Lederfeind, New York, N. Y. l Application september 2s, 1934, serial No. 745,933

" 6 Claims.

The invention relatesto a powder container.

'5 liing of the same'. Y

It has for an object the provision of a powder container which may be illedor loaded through the bottom, the Vfilling openings being subse' guently sealed.

A further object of the invention resides in the provision of a powder container wherein the contents are automatically fed toward the outlet of thercontainer as the powder is depleted.

In carrying out the invention, an open-ended receptacle is provided over its open. end with a siiter element and with a disk or thelike to temporarily seal the outlet, particularly during` the filling of the receptacle through the bottom thereof. said bottom with a scalable opening, there'being provided also between said bottom and the said sitter element or screen a false bottom or Vfollower element which is likewise provided with a scalable opening located coaxially with respect to the saidopening in the bottom.

in assembling the container, the follower is rst placed into the receptacle andits cross-sec tion is substantially that of the cross-section of the interior of the receptacleso as to aord a snug fit therein. Over this follower islocated the sitter element at the outermost part of the receptacle and secured in position as by gluing the same to the surrounding wallof the receptacle. The powder is then iilled into `the container through the two openings aforesaid and located respectively in said follower and in the bottom of the receptacle. Y

A closure element for the follower opening is then inserted therein J andra coil spring introduced between the follower and the bottom of the receptacle and abutting 'at one end the said closure element and at its opposite end a second closure element designed to nt the bottom lling opening and to be removably held to said bottom. Ey this expedient, a constant pressure is provided behind the follower to force and to present the powder at thescreen, the powder being rendered accessible for use by breaking the temporary seal at the top. A convenient means for loading the container is thus afforded, and the powder is always presented at the uppermost portion of the container for use,

The nature of the invention, however, will best be understood when described in connection with the accompanying drawing, in which This is accomplished by providing the (o1. nps-s2) Fig. 1 isa plan view of the novel powder container, with portions broken away Yto disclose the interior construction.

Fig.12 is a similar bottom view of the container.

Fig 3 is a vertical section through the container.

Referring to the drawing, il) designates a receptacle'of suitable material such as cardboard or metal and of the desired shape, preferably cylindrical A cap member H is designed to lit over the same tor covering its outlet opening l2 when the container is not in use, the opening being provided, for'example, by an annular member i3 secured to the outer end of the container interior after the various parts hereinater noted have been properly positioned. Thus, there is iirst provided within the container a follower disk 1540i substantially the same cross-sectional area asl the interior ofthe container; and over the. same is located a sitter or strainer element I 5, designed tow abut the annular member i3, and having either a friction t with the receptacle wall or being securedthereto by a suitable adhesive.

The said follower disk l5 is provided with a centrally disposedV scalable filling opening ll which is coaxial with a similar ,but larger opening I8 centrally disposed in the bottom of the receptacle. Both ofV these` openings are designed to be closed by respective closure members I9 and 2t, the former being preferably flanged and dished to seat within the said opening ll, while the latter closure member 2liV is provided with radially disposed arms 2! extending from the circumference thereof. These arms aredesigned to iitcorresponding radiallydisposed slots 22 of the opening, ltheclosure element 2D being substantially of the diameter'of theopening I8 and its arms 2l serving to hold Vthe said element to the bottomafter passing through the slots 22, as by giving the element alslight angular movement to displace angularly its said arms 2l` with respect to said slots 22 to cause them to bear upon the bottom of the receptacle.

Between the two closure elements is located a coil spring 25 with its opposite ends abutting the said closure elements, which may be dished to receive and locateV the` same. to urge the follower disk I5 toward the sitter element IS, insuring always that the powder conr tents 26 will be presented at the outlet l2. The latter outlet may initially be sealed by a strip of paper 2l or transparent cellulose product to avoid spilling of the powder in the loading operation, the covering being destroyed when the container This spring serves of the receptacle after the closure element 28 hasV been located therein.

The loading operation is conducted, of course, with the two closure elements i9 and 2li-removed from their corresponding openings, as well as the spring from the receptacle, so that the powder may be poured through` the coaxial. openings tothe interior space between the screen lj and thefollower l5. The closure element i9 is then located in position and the spring 25 inserted behind the follower and sprung into position with element 2% locked in place. in full lines this assembly with the contents partly consumed and in the dotted line/positiony with th contents almost fully depleted.

I claim: Y

i. fr bottom-fillable powder container, comprising an kopen-ended receptacle, a sifter element over. its open end, the opposite end ofi the receptacle provided with a filling opening, a

follower element of the interior cross-seotioniof" said receptacle,Y mounted rwithin the same.` and provided with an opening to allow filling of the receptacle, a springmounted between said follower and receptacle bottom to urge the vfollower toward the sifter end, aremovable closure element for the follower opening, and a closure element for the filling opening, the latter element being adapted to be removably held to the bottom of the receptacle.

2. A bottom-llable powderV container, comprising Van open-ended receptacle, a sifter element over its open end, the opposite end of the receptabl'e being provided with; a filling opening having outwardlyY directed slots, a follower element of the interior cross-section of said receptacle, mounted within the same and provided with an opening to allow filling of the receptacle, a spring mounted between said follower and receptacle bottom to urge the follower toward the sifter end', a removable closure element for the follower opening, and a closure element for the Filing opening', the latter element having larms extending outwardly therefrom adapted to pass through the slots' of the filling opening to be angularly displaceable in relation thereto to hold the closure element to the( receptacle vbottom for closing its opening. Y .Y

'3A bottom-fllable'powder container, comprising an open-ended receptacle, a sifter element over its'open end, the opposite end of Vthe receptacle being provided with a filling opening,

a follower element of the interior cross-section of said receptacle, mounted within the same andy provided with an opening to allow filling of the receptacle, a spring mounted between said follower and receptacle bottom to urge the follower toward the sifter end', a removable closure element for the follower ope`ning,-andl a removable The drawing, Fig. 3, indicates closure element for the filling opening, the latter element being adapted to be held to the bottom of the receptacle and the respective ends of the spring bearing upon the two said closure elements.

4. A bottom-fillable powder container, comprising an open-ended receptacle, a sifter element over its open end and having a temporary removable covering secured thereover, the opposite end of the receptacle being provided with a. filling opening, a follower element of the interior cross-section of said receptacle, mounted' within the. same and provided with an opening to allow lling of the receptacle, a spring mounted between-said follower and receptacle bottom to urge the follower towardv the sifter end, a removable closure element for the follower opening, and a closure element for the filling opening, the latter element being adapted to be removably held to the bottom of the receptacle.

ELA bottom-llable powder container, cornprising an open-ended receptacle,`a sifter element over its openend and having a temporary removable covering secured thereover, the opposite end of thev receptacle being; provided with `a filling opening having outwardly directed slots,V a follower element of the interior cross-section of said receptacle, mounted within the same and;

provided with an opening coaxial with the fillingy Y `opening to allow filling of the receptacle, a spring mounted between said follower and receptacle bottom to urge the follower toward the sifter'end, a removable Aclosure element for the follower opening, and a` closure element for the filling' opening', the latterelement having arms extending outwardly therefrom adapted to pass throughy the slots of the filling openingv to` beA angularly displaceable in relation thereto to hold the closure, elementv to the receptacle bottom for closing its. opening,l and the respective ends of the spring bearingA upon the/two said closure Yelements. f

5. Af bottom-llable powder container, comprisingl an open-ended receptacle, a sifter element over its open end, the opposite endrof the receptacle being provided with a circular filling opening having radial oppositely disposed slots, aY follower element of the interior' cross-section of said receptacle, mounted withiny the same, and provided with an opening to allow filling of thev receptacle, a spring mounted between said follower and receptacleY bottom to urge. the follower toward'the sifter end, a removable closurey element for the follower opening, and a closure element for the filling opening, the latter element having arms extending radially outwardly therefrom to pass through the `corresponding slots of the filling opening and angularly displaceable in relation thereto to hold the closure element to the receptacle bottom for closing its opening.

WILLIAM J. BAUER. 

